Air gun



E. S. ROE.

Patented June 13, 11.922.

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AIR GUNl APPLICATION man Nov. r2, i920.

Patente June i139 1922.

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m MM# zum We t wie n. n u je i n e t *l iti trl it", la o ERNEST S. ROE,OIF PLYMOUTH, BEIGE-UQAM', TQ MARKHAM AER RIFLE COMPANY, OF PLYMOUTH,MIGIGAN, A, CRPORATION 0F MICHIGAN.

AIR GUN.

T 0 all whom t may concern:

Be it known that l, llnNnsT S, Ron, a cit izen of the United States ofAmerica, resid-- ving at Plymouth, in the county of i/Vayne and State ofMichigan, have invented Cei tain new and useful Improvements in AgirGuns, of which the following` is a speciica tion, reference being hadtherein to the accompanying crawings.

The invention relates to guns and refers more particularly to air gunsor riflesA Qne of the objects of the invention is to provide an air gunof that type in which the gun is cocked by what is known asbreaking-down the barrel and to provide means for automatically sealingthe joint between the abutment in the casing and the barrel when thelatter is in shooting position, or in other words, in alignment with thecasing. Another object of the invention is to provide means cooperatingwith the pivot connecting the barrel and casing to hold the barrel andcasing in shooting position. Further objects of the vinvention reside inthe novel features of construction and combimitions and arrangements ofparts as more fully hereinafter set forth.

In the drawings:

Figure l is a side elevation of an air gun embodying my invention;

TFigure 2 is a longitudinal sectional elevation of a portion thereofshowing the parts in shooting position;

Figure 3 is a similar view showing the parts in broken-down position;

Figure 4 is a j )erspective view of the true barrel mechanism g Figure 5is a' bottom plan view of a portion of the air gun;

Figure 6 is bottom pla-n view of sight.

l represents the usual stock of the gun, and 2 the barrel sectionthereof, rl' he stock is provided at its forward end with the casing 3which forms the housing for the air compression chamber 4f, the plunger5, the coil spring 6 for actuating the plunger in one direction, and thetrigger mechanism 7, which may be of usual construction. 6 a stationaryabutment secured in the forward end of the air compression chamber etand having the central aperture 9 therein for the passage of the air.

The barrel section 2 is pivoted to the forspeciication of LettersPatent. Patented Jilin@ 13, i922.

Application filed November 12, 1926.

Serial No. 423,5?0.

ward end ofthe casing 3 at l0 and the breakdown movement of this barrelsection about the pivot l0 is utilized for compressing the coil springY6 and cooking the air gun. As shown, the barrel section 2 has thedepending side flanges l1 at its rear end and the casing 3 has thedepending side flanges 12, the adjacent ends of which are pivotallyconnected together at l0. 1 3 is a rod, preferably U-shaped, pivotallyconnected at its ends to the depending side flanges ll of the barrelsection 2 as at lll. The base 15 of this i-shaped rod eX- tends throughthe parallel longitudinal slots 16 in the depending side flanges l2 ofthe casing and is adapted to engage the downtnrned end l? of the shanksecured to the plunger 5 for longitudinally moving the latter backwardto compress the coil spring 6 upon the breaking-down movement of thebarrel section. As shown in Figure 3, the barrel section is rotateddownwardly and to the rear with respect to the casing until thedo\vn-tnrned end '1.7 is engaged by the shoulder 16 of the triggermechanism after which the barrel section is returned back to shootingposition, when it is in alignment with the casing.

Then the barrel section and casing are in alignment, their adjacent endscontact so that it is impossible to swing the barrel section further. Toalign the axis of the barrel sect-ion and casing in a vertical plane,the forward end of the 'casing is provided with the upper segmentalportion 3 which overlaps and tits the barrel section.

F or the purpose of maintaining this bar rel section in horizontalalignment with the casing, the lll-shaped rod lf3 is made resilient andits parallel arms extend adjacent to the outer sides of the dependingside lianges 1l and also the pivot lll is located upon the dependingside flanges ll, so that when the barrel section is in alignment withthe casing, the parallel arms of the U-shaped rod engage the heads atthe opposite ends of the pivot l0 and those portions thereof adjacent tothe casing. Thus it is seen, that in order to break-down the air gun,the parallel arms of the lil-shaped rod must yieldably bend laterallyoutward to pass over the heads of the pivot 10 and upon the returnmovement of the barrel section, these parallel arms will snap over theseheads therebj.7 yieldabljvv holding the barrel section and the easing'in shootingposition.

For theI purpose oiE niaintaining` an air tight seall between theabutment S and the true barrel 19 and at the saine time removablymountingthel true barrel in the Yfalse barrel 20, the 'followingconstruction is provided: is a stop Within the Yfalse barrel Q0, and isan annulus` surrounding the true barrel 19 and engaging;v the inner endel the stop 2l. is an abutment ,dlv secured to the true barrel 19j and/lis a coil sprintf; between the annulus and alinitment ..y 'forvieldably Aforcing the true barrel ll rea-s'- Wardly and into engagementn'ith the al itment S in the easing); To limit the rene Ward movement otthe true barrel 'I9 so that it will not lfieeome eomiiwletely dif-eifrom the YFalse barrel il() or moved reari n so tar that it Willinterfere with the swine'- ing oit the barrel section into sho tion,there is the stop Q5v1 which is aly a sight, and has the portion entendi:t forwardly Within and parallel to the Wall oi the lalse barrel 20. The'forward end ot this portion oit the stop has the li-shaped notch 27therein :tor engagement by the abutment 23. Thus it is seen that therear end oit the trnel irrel i9 which is preferably provided with theannular 'Harige Q8 is ieldably 'forced into Contact with the forward endot the abutment 8, but at the same time the movement ot the true barrelin either direction is limited by means oi' the stops Slt and As shownin Figure il, the rear end ot the true barrel lil is adaptei'l toeide-nd slightly beyond the rear ond ol' the ilse barrel Q() when thefalso barrel is in itsI broken-down position; but as shoun in lds-j nreQ, the rear end o'l" the true ba r'rel is substantially .flush with therear end el the false barrel due to being en [red bv the abutment 8 whenthe false bai rel is rotated into shooting' posiion. The trent ne ot theabutment is preterablv 'formed ol' a pliable material such as leather toassure a better seal.

As shoivn in Figure fl, the annulus has the segmental notch 29 in itsperiphery to permit of moving the annulus longitudinal ly into the'false barrel 2O and past the portion Q6 of the stop 25. The abutmenttixedly secured to the trne barrel 19 has the hub portion 30 upon thetrue barrel and the diametrieally oppositely extending flat portions 31,one oli' which 1s adapted to engage in the U-shaped slot Q1 ot the stopreason ot this fronsi'iructiom the annulus coil spring; 24;, abutment 2Sand true barrel 19 may be longitudinally inserted into the 'liaisebarrel 20 and the true barrel then rotated sntlicientlj,T to engage theabutment 23 in the U-shaped slot 27.

To facilitate the rotation ot the true barrel 19 and abutment 23 fixedthereoni the W has the slot flange o 32 in its rear tace to permit otthe use ot a suitable tool such as a screw-driver.

Another feat-ure of my invention resides in Vorminp,` the shankconnected to the pluniier ot the gun to 'facilitate the assembly of theparts. ln detaih 33 is a cylindrical shank secured to the plunger 5 andhaving at its rear end the down-turned portion 1T. The coil spring` 6engages Within this cylindrical shank.

What l claim as my invention l. ln an air gun, the combination With theand an abut-ment 'thereina provided n n i an apertur for the passage ofair, of a Vlalse barrel pivot-all)T connected to said eas-- i ngj a truebarrel in said false barrel adapted to register ivith said aperture whensaid lalse barrel is in alignment with said casing, and yieldable meanstor sealing the joint between said true barrel and abutment, operatedautomatically by swinging said ifelse barrel into alignment With saideasing.

2. ln an air gun, the combination with the easingY and an abutment liXedtherein and provided with an aperture for the passage oit air7 oit afalse barrel pivotally connected to said easing7 a true barrel in saidfalse barrel adapted to register with said aperture When'said falsebarrel is in alignment with said casing, and means :tor yieldablv'forcing said true barrel rearwardly` said abutment being` arranged sothat it engages said true barrel upon the swinging et said `false barrelinto alignment with said easing and loi-nis a seal therewith When said:talee barrel is in alignment with said casing'.

il. ln an air gun, the combination with the easing and an abutment iiXedtherein and provided With an aperture 'for the pasoit air, ot a Yfalsebarrel pivotally connected to said easing. a true barrel removablymounted in said false barrel, means for vieldably forcing said truebarrel into contact with said abutment when said false barrel is inalignment With said casing, and stops upon said false barrel forlimiting the movement ot said true barrel in either direetionq one ofsaid stops permitting of removal of said true barrel.

4l. ln an air gun, the combination with the casing and an abutment fixedin the outer end thereof and provided with an aperture Afor the passageof air, of a false barrel pivotalljfv Connected to said easing, a truebarrel removably mounted in said false barrel and adapted to registerWith the aperture in said abutment when said lalse barrel is inalignment With said easing, a stop upon said false barrel having aportion extending adjacent to the wall thereof with a slot in itsforward end, a second stop Within said false barrel 'forward ot saidmember, an abutment upon said true barrel engageable in the slot in saidfirst-mentioned stop, and a coil spring surrounding said true barrel andlocated between said true barrel abutment, and second sto 5I.) In an airgun, the combination with the casing and an abutment fixed in the outerend thereof and provided with an aperture for the passage of air, of afalse barrel pivotally connected to said casing, a true barrelinsertible into said false barrel and adapted to register with theaperture in said abutment when said false barrel is in alignment withsaid casing, a sight upon said false barrel having a portion extendingwithin and adj acent to the wall thereof with a slot in its forward end,a second stop within said false barrel, an abutment upon said truebarrel having a portion extending radially therefrom and into engagementwith the slot in said sight, a coil spring between said stop andabutment and a iange upon said true barrel adapted to abut said abutmentin said casing, said flange provided with a recess for facilitating therotation of the true barrel in assembling with the false barrel.

6. In an air gun, the combination with the casing, of a barrel pivotallyconnected thereto, and means engaging and cooperating with the pivot forholding said barrel in alignment with said casing.

7. In an air gun, the combination with the casing, a plunger therewithinand a spring for actuating said plunger in one direction, of a barrelpivotally connected to said casing, means for compressing said springupon rotation of said barrel, and means cooperating with saidcompressing means for holding said barrel in alignment with Said casing.

S. In an air gun, the combination with the casing, a plunger therewithinand a spring for actuating said plunger in one direction, of a barrelpivotally connected to said casing, and a rod connected to said barrelfor compressing said spring upon rotation of said barrel, said rod beingyieldably engageable with the pivot between said barrel and casing forholding said barrel in alignment with said casing.

9. In an air gun, the combination with the casing, a plunger therewithinand a spring for actuating said plunger in one direction, of a barrelpivotally connected to said casing, and a lll-shaped rod connected tosaid barrel at its ends for compressing said spring upon swinging ofsaid barrel, said U-shaped rod having substantiallyparallel arms spacedapart a distance less than the length of the pivot connecting saidbarrel to said casing and said arms being resilient to snap over theends of the pivot when swinging said barrel into shooting position.

lO. In a gun, the combination with the casing, of a barrel pivotallyconnected thereto, and a rod pivotally connected to said casing andbarrel and yieldably engageable with the pivot between said casing andbarrel 'for holding said barrel in alignment with said casing.

In testimony whereof I aix my signature.

ERNEST S. ROE.

